Para-aramid drives the development of para-phenylenediamine industry

paraphenylenediamine, also known as ursi d, is an organic compound with the chemical formula c6h8n2. it is one of the simplest aromatic diamines and a widely used intermediate. at present, p-phenylenediamine is mainly used in the fields of dyes/pigments and rubber additives. p-phenylenediamine can be synthesized into azo disperse dyes, acid dyes, direct dyes, sulfur…